FIELD: electrical engineering. SUBSTANCE: device has one phase of stator winding of coils 1,2 connected to transistors 3,4 whose bases are connected to threshold units connected to rectifier 12. Second phase of stator winding has three coils 13-15 connected to transistors 16-18 which are connected to different phases of supply mains. Coils have different number of turns so that one phase is supplied with line voltage and other, with phase voltage to build up uniform rotating magnetic flux in stator. EFFECT: improved design. 1 dwg
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